• Title/Summary/Keyword: biological characteristics

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A new record of a sea star, Henricia aspera Fisher, 1906 (Asteroidea: Spinulosida: Echinasteridae) from Jeju Island, Korea

  • Michael Dadole Ubagan;Sook Shin
    • Journal of Species Research
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    • 제12권2호
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    • pp.154-157
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    • 2023
  • A specimen of Henricia was collected from the adjacent waters of Moseulpo, Jeju Island, Korea, using fishing nets. The specimen was identified as Henricia aspera Fisher, 1906, which belongs to the family Echinasteridae of the order Spinulosida. This species can be distinguished from other Henricia species by its broad arms (R/r=4.1), swollen arm base, three to seven short abactinal spines, and close-meshed formation of the actinal skeleton. This study has newly recorded H. aspera inhabiting the Korean fauna, bringing the total number of known Henricia species in Korea to 16. This study provides a description of the morphological characteristics of H. aspera with photographs of each part. Additionally, a table is presented that compares the morphological characteristics of H. aspera with closely related Henricia species.

Biological and Ecological Considerations of the Freshwater Amphipod, Diporeia spp.

  • Song, Ki-Hoon
    • 환경생물
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    • 제21권4호
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    • pp.328-336
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    • 2003
  • Biological and ecological characteristics of Diporeia spp. are described including size, growth, life cycle, energy storage, temperature effect, bioturbation, feeding depth and sediment ingestion of Diporeia. Bioaccumulation and toxicity of organic contaminants and trace metals were reviewed in addition to an examination of the relationships among various condition indexes (i.e. wet weight, dry weight and body length) of Diporeia.

A Checklist of the Basidiomycetous Macrofungi and a Record of Five New Species from Mt. Oseo in Korea

  • Lee, Won Dong;Lee, Hyun;Fong, Jonathan J.;Oh, Seung-Yoon;Park, Myung Soo;Quan, Ying;Jung, Paul E.;Lim, Young Woon
    • Mycobiology
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    • 제42권2호
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    • pp.132-139
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    • 2014
  • Basidiomycetous macrofungi play important roles in maintaining forest ecosystems via carbon cycling and the mobilization of nitrogen and phosphorus. To understand the impact of human activity on macrofungi, an ongoing project at the Korea National Arboretum is focused on surveying the macrofungi in unexploited areas. Mt. Oseo was targeted in this survey because the number of visitors to this destination has been steadily increasing, and management and conservation plans for this destination are urgently required. Through 5 field surveys of Mt. Oseo from April to October 2012, 116 specimens of basidiomycetous macrofungi were collected and classified. The specimens were identified to the species level by analyzing their morphological characteristics and their DNA sequence data. A total of 80 species belonging to 57 genera and 25 families were identified. To the best of our knowledge, this is the first study to identify five of these species-Artomyces microsporus, Hymenopellis raphanipes, Pholiota abietis, Phylloporus brunneiceps, and Sirobasidium magnum-in Korea.